Home / 120,886.07-166,819.47-67,169.70

Finding the Fourth Proportional to 120,886.07, 166,819.47 and 67,169.70

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Solution

The fourth proportional to 120,886.07, 166,819.47 and 67,169.70 is: 92,692.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,886.07 : 166,819.47 = 67,169.70 : x
  2. Step 2: Convert to fraction form
    120,886.07/166,819.47 = 67,169.70/x
  3. Step 3: Cross multiply
    120,886.07x = 166,819.47 × 67,169.70
  4. Step 4: Simplify right side
    120,886.07x = 11,205,213,754.06
  5. Step 5: Solve for x
    x = 11,205,213,754.06/120,886.07
  6. Step 6: Final answer
    x = 92,692.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.